def _create(self, vpc_id, vpc_cidr, subnet_cidrs, internet_gateway_id, compute_subnet_size):
public_cidr = get_subnet_cidr(
vpc_cidr=vpc_cidr, occupied_cidr=subnet_cidrs, min_subnet_size=compute_subnet_size + HEAD_NODE_SUBNET_IPS
)
_validate_cidr(public_cidr)
parameters = self.get_cfn_parameters(vpc_id, internet_gateway_id, public_cidr)
stack_output = _create_network_stack(self, parameters)
return {"master_subnet_id": get_stack_output_value(stack_output, "PublicSubnetId"), "use_public_ips": "true"}
def test_get_subnet_cidr():
assert_that(
get_subnet_cidr(
vpc_cidr="10.0.0.0/16",
occupied_cidr=["10.0.0.0/18", "10.0.64.0/18", "10.0.128.0/18"],
min_subnet_size=17000,
)).is_none()
assert_that(
get_subnet_cidr(
vpc_cidr="10.0.0.0/16",
occupied_cidr=["10.0.0.0/18", "10.0.64.0/18", "10.0.128.0/18"],
min_subnet_size=100)).is_equal_to("10.0.192.0/20")
assert_that(
get_subnet_cidr(
vpc_cidr="10.0.0.0/16",
occupied_cidr=[
"10.0.0.0/19", "10.0.32.0/20", "10.0.48.0/21", "10.0.64.0/18",
"10.0.128.0/17"
],
min_subnet_size=100,
)).is_equal_to("10.0.56.0/21")
assert_that(get_subnet_cidr("10.0.0.0/16", ["10.0.0.0/24"],
256)).is_equal_to("10.0.16.0/20")
def _create(self, vpc_id, vpc_cidr, subnet_cidrs, internet_gateway_id, compute_subnet_size): # noqa D102
public_cidr = evaluate_cidr(vpc_cidr=vpc_cidr, occupied_cidrs=subnet_cidrs, target_size=HEAD_NODE_SUBNET_IPS)
_validate_cidr(public_cidr)
subnet_cidrs.append(public_cidr)
private_cidr = get_subnet_cidr(
vpc_cidr=vpc_cidr, occupied_cidr=subnet_cidrs, min_subnet_size=compute_subnet_size
)
_validate_cidr(private_cidr)
parameters = self.get_cfn_parameters(vpc_id, internet_gateway_id, public_cidr, private_cidr)
stack_output = _create_network_stack(self, parameters)
return {
"master_subnet_id": get_stack_output_value(stack_output, "PublicSubnetId"),
"compute_subnet_id": get_stack_output_value(stack_output, "PrivateSubnetId"),
"use_public_ips": "false",
}